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V-Lab

Chicago SRW Wheat GJR-GARCH Volatility Analysis

Volatility prediction for Friday, July 17th, 2026

1 Day

37.39%

decreased by 1.01%

1 Week

37.26%

decreased by 1.14%

1 Month

36.75%

decreased by 1.65%

Analysis last updated: Friday, July 17, 2026 at 05:17 AM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Chicago SRW Wheat GJR-GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jul 17, 2000 to Jul 10, 2026

Model Insight

This asset shows a rare inverse leverage effect: positive returns raise next-day volatility 26% more than negative returns. Volatility rises more after gains than after losses, the reverse of the usual leverage effect and uncommon among risky assets.

σ

GJR-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0547
16.47***
α

ARCH

Response to squared shocks

0.0544
17.40***
β

GARCH

Volatility persistence

0.9376
424.81***
γ

leverage

Additional response to negative shocks

-0.0111
-2.30**

Persistence:

0.986

Half-life:

51 days